M-am conectat la IGS-IP Broadcaster la statia BUCU0 (de altfel singura statie la care m-am putut conecta). Receptorul s-a fixat, totul OK. Am determinat un punct.
Apoi m-am conectat la ROMPOS. Acelasi punct l-am determinat cu ROMPOS. Diferenta intre coodonate 1.6m. A mai facut cineva un astfel de experiment ? Stie cineva de ce sunt diferente intre cele doua retele ?
Multumesc!
Si eu m-am comutat candva la Budapesta (BUTE si PENC) si in RTK cu baza de peste 100 km nu am avut o asa eroare ( precizia era undeva in 60cm, fara solutie "fixed" ) fata de puncte masurate RTK cu TIM1.
Mai vezi, poate-i alta belea, de la retele sigur n-are cum sa fie asa mare diferenta.
Modificat de Mit (10-05-2013 18:38:11)
Diferenta poate proveni de la coordonatele transmise de retea pentru statia permeneta. Daca iti inregistreaza in controller coordonatele poti sa verifici.
Pune coordonatele aici sa vada si ochii nostri ;) si sa ne dam cu parerea.
Coordonate BUCU din ROMPOS: 44.27.50,19198; 26.07.32,65014; 143.2060
Coordonate BUCU0 din IGS: 44.27.50,14878; 26.07.32,69424; 139.0744
Nu inteleg. Cum ai zis si tu, nu seamana cu nimic de la IGS sau EUREF.
Poate se jucau astia cu reteaua in ziua in care ai masurat.
Seamana cu o solutie Single Point Pozitioning dar in cazul acesta pierdem notiunea de RETEA.
Am scris la BKG care administreaza reteaua si am primit urmatorul raspuns:
the coordinates transmitted are set by the station operators.
For station BUCU0 you may contact Tiberiu Rus (mail E-mail .ro) from Bucharest Technical University of Civil Engineering.
Best regards,
Peter Neumaier
BKG FrankfurtOmul a trimis mail-ul si profesorului Rus. Daca nu imi raspunde in urmatoarele zile mai scriu un mail.
A raspuns si profesorul Rus
I checked the coordinates reported by RT connection
at
ftp://epncb.oma.be/pub/station/coord/EPN/RTCM.CRD
and as you can see in the attached picture there are
BUCU 11401M001 4093761.2364 2007793.5854 4445129.7764 in
ETRF2000 datum at EPOCH: 2013-01-01 00:00:00
and are different than those you have reported:
4093758.967, 2007793.564, 4445125.918.
Also from ROMPOS RT service the coordinates reported are:
MT03 Stat 54 ZCount 789.6 X 4093761.270 Y 2007793.610 Z 4445129.830
in ETRF2000 datum at EPOCH: 1989.000
("technical coordinates" adopted also for EUPOS RT service
- not exactly the OFFICIAL solution for BUCU listed bellow
BUCU ETRF2000 1989.000 4093761.2060 2007793.5760 4445129.7640 or
BUCU ETRF2000 1989.000 44 27 50.19198 26 7 32.65012 143.2060
closed to those from EUREF/IGS-IP.
Anyway I filled and sent today (18 May 2013) a Registration
Form for EUREF/IGS IP service in order to check personal
what are the coordinates received by users.
After activating the account I will send my conclusion
on that problem.
With best regards,
Tiberiu.Deci, se misca ceva.